News Canada-U.S. border to remain closed until September 21 SHARE ON: Wendy Gray, staff Friday, Aug. 14th, 2020 (supplied by Pixabay) If you were hoping to take an end of summer road trip south of the border you will have to wait at least another month. The land border between the United States, Canada, and Mexico will remain closed to non-essential travel until at least September 21st. The U.S. Homeland Security Department Secretary announced the extension in a tweet this morning. Canada’s Minister of Public Safety and Emergency Preparedness, Bill Blair has also confirmed the extension. The news comes as Americans struggle to contain outbreaks of COVID-19.